Tunable wavelength filter using a Bragg grating fiber thinned by plasma etching

Hironori Kumazaki, Yoshihisa Yamada, Hidetoshi Nakamura, Seiki Inaba, Kazuhiro Hane

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


In this letter, we studied a tunable wavelength filter using a single-mode fiber Bragg grating with a cladding thinned by reactive plasma etching. Reflection wavelength shifts were demonstrated by controlling the effective refractive index or the period of the grating. When liquid paraffin was used for additional cladding on a thinned grating fiber of 19-μm diameter, the shift rate of 0.055 nm/°C was obtained. In the case of applying the tension to the grating region, the shift rate was 3.4 nm/100 V for the fiber of 41-μm diameter.

Original languageEnglish
Pages (from-to)1206-1208
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number11
Publication statusPublished - 2001 Nov


  • Fiber Bragg grating
  • Plasma etching
  • Tunable-wavelength filter
  • Wavelength-division multiplexing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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